Gas range top unit



R E u A B w GAS RANGE To? UNIT Filed Dec". 2a, 1946 ,nvm/TOR. Wal- UAM AUER B 'and more particularly to side of the cooking Patented Apr. 12, 1949 l William Bauer,

poration of Ohio Mansfield, 01110,' assigner to The Tappan Stove Company,

Mansfield, hio, a cor- Application December 28, 1946, Serial No. '119,040

. 1 This invention relates to a gas range top unit in which the heated air is conducted directly toward the area to heating the rest of the cooking top. It is well known in the art to make use of a plurality of perforated chimney burners in which combintion takes place; but the tendency has been to heat not only the area immediately below the cooking vessel but to heat also the adjacent top of the range or stove.

One of the objects of this invention is to provide a gas range cooking top unit which isV made up of a plurality olf concentrically arranged im. perforate cylinders which are so disposed as to conduct the products of combustion upwardly toward the area to be heated and to reduce to a minimum the tendency to heat the portions outarea.

Another object of this invention is to provide a cooking top unit which includes a gas burner over which is disposed a plurality of imperforate cylinders which are so disposed and arranged as to direct the products of combustion upwardly toward thek cooking vessel without unduly heating or overheating the top of the stove adjacent such cookingr area.

. Another object of this invention is to provide a cooking -burner unit in which a plurality o! cylinders are so disposed and arranged as to di rect the products of combustion upwardly the area desired to be heated without, however, unduly heating the entire cooking top of the stove.

Further and more limited objects of the invention will appear as the description proceeds and by reference to the accompanying drawing and specification in which Fig. 1 is atop plan view ciated .facilities which will accomplish the objects of my invention; and

Fig. 2 is a fragmentary vertical sectional view taken substantially on the line A-A of Fig. 1, the parts being somewhat diagrammatically shown in order to -bring out the distinguishing features of the invention.

Referring now to the drawings, the reference character I designates the front wall of a stove or gas range above w 'Ich is disposed a top plate 2. Disposed below the top plate 2 is a gas burner 3 which is preferably formed of cast iron and which is generally annular in shape. Leading into the burner is a gas supply line 4 which is controlled by a valve 5 which is operated by a valve handle 6. Primary air is delivered to the of a burner and Vassobe heated without undulyv a burner combination toward inders serve to guide and 4 Clam- (Cl. 126-214) burner through an air shutter 1. Disposed over the gas burner 3 is an impenforate cylinder 8 which may be supported in any suitable manner.

This cylinder 8 preferably rests upon the top of the burner and is supported thereby. Disposed outwardly and in concentric relation thereto is another imperforate cylinder 9 which may be supported in any suitable manner. This cylinder 9 is somewhat larger its bottom portion disposed lslightly 4above the cylinder 8. Outside of and concentrically disposed with respect'thereto is another imperiorate cylinder I0 which is somewhat larger than the gas burner 3. These three cylinders designated .by the reference characters 8, 9 and I0, are concentrically arranged and their'. lower ends are open so as to admit the passage of air therethrough.

The burner 3 is disposed below the at cooking top of the stove and overlying the burner is a grate II which is preferably formed of cast iron and over which is disposed a glass plate I2.

The gratemay be formed in one piece or. it may consist of a plurality of parts. Preferably the grate is disposed substantially iiush with the flat top of the stove or range so that vessels may be moved freely thereabout. The gas burner 3 is disposed below the top of the range and the products of combustion are directed upwardly toward the grate or the area to be heated. The several cylinders serve to Idirect the products of combustion toward the grate. The grate may be insulated, if desired, from the adjacent portions of the range. The idea is to conduct' the products of combustion toward the grate without unduly heating the adjacent portions of the cooking top. Disposed over and surrounding the grate is a burner pan I3 which serves to receive the overflow from a cooking vessel which may be positioned over the cooking top.' This burner pan I3 is generally annular-in shape and is supported by the cooking top as will appear most 'clearly in Fig. 2. The ports ror outlets of the burner are disposed inwardly at an angle so that the burner flames do not limpinge upon the metal frame of the burner.

The concentrically arranged imperforatevcylto direct the currents of heated air upwardly toward the area which it is desired to be heated. The reference character I4 designates a ue which leads outwardly toward an opening I5 which serves to outlet for the products of combustion of the burner. This flue I4 is in the shape of a tube or channel which is connected with the -burner than the cylinder 8 and has provide an 'betweentheou' pan I3 so that the products of combustion may escape should a vessel -be placed over the cooking top -which would preclude escape of such producis of combustion upwardly, as a safety measure.

The concentrically arranged cylinders serve to provide channels to direct heated air toward the areatobeheatedandtoreducetoaminimum the tendency to heat the rest of the cooking top tside of the area desired to be heated. .The form of the top grate or plate is not particularly eSential as it may be for-med in part orf metal or glass or it may even be a part of the top of the stove. The flue Il serves as a safety factor Should a large vessel be placed over the burner and thus thereby release the pnoducts of combustion at one side or toward the rear of the cooking top. The heat produced by the burner serves to induce -a current of air upwardly toward the area to be heated and limits it to such area without imduly heating the rest of the cooking top. The bumer pan i3 servesto collect any overflow zfrom the vessel -being heated.` The burnaports are not subject to being clogged by reason ot overilow and are protected by the burner pan Il. The top plate or grate is preferably positioned flush with the main top of the stove.

It will now be clear that I have provided a gas range top unit which will accomplish the objects if the invention as hereinbefore stated. It is to` beunderstood that various changes may be made lower end thereof engaging the top of said burner between the outer and inner walls thereof, an intermediate open ended imperforate cylinder arranged concentrically of said 'outer and inner cylinders with the lower end thereof spaced from the top of said burner, and a utensil supporting grate overlying said opening iand spaced from the upper ends of said cylinders. j

2. In a. device of the character described the combination of a ring shaped gas burner disposed below an opening through a range top and having a pluralityof orifices through the inner wall thereof, an open ended imperforate cylinder of greater diameter than said burner arranged conoentrically of said burner between said burner and said openingwith the lower end thereof disposed below the top surface of said burner, an inner imperforate open ended cylinder arranged concentrically of said outer cylinder with the lower end thereof engaging the top of said burner and inner walls thereof, an intermediate open ended imperforate cylinder arranged coneentrically of said outer and inner cyland less than the o thereof, an open concentrically of said outer cylinder with the lower end thereof engaging the top of said burner between the outer and inner walls thereof, an intermediate open ended imperforate cylinder arranged concentrically of said outer and inner cylinders with the lower `end thereof spaced from end of said outer cylinder, a utensil supporting grate overlying said opening and spaced from the upper ends of said cylinders, and an imperforate plate supported by said grateoconcentrically with said cylinders the diameter of said plate being greater than the diameter of said outer cylinder diameter of said opening.

4. In a device of the character described the combination of a ring shaped gas burner disposed below an opening through a range top and having a plurality of orices through the inner wall ended imperforate cylinder of greater diameter than said burner arranged concentrically of said burner between said burner and said opening with the lower end thereofl disposed below the top surface of said burner, an

einner imperforate open ended cylinder arranged concentrically of said outer cylinder with the lower end thereof engaging the top of said burner between the outer and inner walls thereof, an intermediate open ended imperforate cylinder arranged concentrically of said outer and inner cylinders with the lower end thereof spaced from the top of said burner, an annular pan disposed below said opening and surrounding the upper end of said outer cylinder, a utensil supporting grate overlying said opening and spaced from the upper ends of said cylinders, and a ue arranged to conduct products of combustion from said pan and to discharge them at a point remote from said opening.

WILLIAM BAUER.

REFERENCESl CITED The following references are -of record in the file of this patent:

UNITED STATES PATENTS 

